Mercedes-Benz 2013 GL Class - Manual (Page 193)

General notes
Cruise control maintains a constant road
speed for you. It brakes automatically in order
to avoid exceeding the set speed. On long and
steep downhill gradients, especially if the
vehicle is laden or towing a trailer, you must
select shift range
1, 2 or 3 in good time. By
doing so, you will make use of the braking
effect of the engine, which relieves the load
on the brake system and prevents the brakes
from overheating and wearing too quickly.
Use cruise control only if road and traffic
conditions make it appropriate to maintain a
steady speed for a prolonged period. You can
store any road speed above 20 mph
(30 km/h).
i Cruise control should not be activated
during off-road driving.
Cruise control lever
:
To activate or increase speed
;
To activate or reduce speed
=
To deactivate cruise control
?
To activate at the current speed/last
stored speed
When you activate cruise control, the stored
speed is shown in the multifunction display
for five seconds. In the multifunction display,
the segments between the stored speed and
the maximum speed light up.
Activation conditions
To activate cruise control, all of the following
activation conditions must be fulfilled:
R
the electric parking brake must be
released.
R
you are driving faster than 20mph
(30 km/h).
R ESP ® must be active, but not intervening.
R
the transmission must be in position D.
R
DSR must be deactivated.
R
off-road program 2 must be deactivated
(vehicles with the ON&OFFROAD package).
Storing, maintaining and calling up a
speed
Storing and maintaining the speed
X Accelerate the vehicle to the desired
speed.
X Briefly press the cruise control lever
up : or down ;.
X Remove your foot from the accelerator
pedal.
Cruise control is activated. The vehicle
automatically maintains the stored speed.
You can accept the current speed if you are
driving faster than 20 mph (30km/h).
i Cruise control may be unable to maintain
the stored speed on uphill gradients. The
stored speed is resumed when the gradient
evens out. Cruise control maintains the
stored speed on downhill gradients by
automatically applying the brakes.
Driving systems
191
Driving and parking
Z